A year ________ four seasons, they are spring, summer, fall and winter．A.makes upB.is made up ofC.is made ofD.is made from
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B解析本题考查词组辨析．四个选项中，make up表示“组成，构成”；be made up of表示“由……组成/构成”；be made of表示“用……制成(看出原材料)”；be made from表示“用……制成(看不出原材料)”．题意为“一年由四个季节组成，它们是春天、夏天、秋天和冬天．”